Form Plume handles spam filtering, storage, email notifications, and webhooks for HTML forms with no backend code. Free for 500 submissions/month; Pro from $9.
Form Plume is a form backend service aimed at developers who build static sites, landing pages, or JAMstack apps and don't want to stand up a server just to handle a contact or signup form. Instead of writing an API route or configuring a mail server, developers point an HTML form's action at a Form Plume endpoint, and the service takes care of everything after submission.
It was built by independent developer Danilo Vilhena as a focused alternative to running custom form-handling infrastructure, and it's designed to work with plain HTML forms as well as popular frameworks like Next.js, React, Vue, Astro, and site builders like Webflow, without requiring JavaScript on the front end.
Form Plume's core job is filtering out spam before it reaches an inbox, using layered protection like honeypot fields, optional CAPTCHA, and rate limiting, then storing legitimate submissions in a searchable dashboard. From there, it can send email notifications, forward data to tools like Slack, Google Sheets, ActiveCampaign, or Mailchimp, and deliver signed webhooks with automatic retries if a downstream system is temporarily unavailable.
It also supports file uploads directly through form submissions, which many lightweight form backends don't handle well, and it works without requiring any JavaScript, meaning a plain HTML form can integrate with it directly for teams that want to avoid client-side dependencies.
Form Plume uses a freemium model. The free tier allows up to 500 form submissions per month and doesn't require a credit card to start, which makes it low-friction to try on a small site or side project. The Pro plan starts at $9 per month for teams that need higher submission volume.
Additional overage pricing is available for production teams whose submission volume grows past what's included in a plan, so costs scale with actual usage rather than requiring an upfront jump to an expensive enterprise tier.
No, the free tier (500 submissions/month) doesn't require a credit card to sign up.
Yes, it's designed to work with plain HTML forms without any JavaScript, as well as frameworks like Next.js, React, Vue, and Astro.
Form Plume filters likely spam using honeypots, optional CAPTCHA, and rate limiting, and quarantines suspicious submissions instead of delivering them to your inbox.
Yes, forms can include file uploads that Form Plume processes along with the rest of the submission.
The Pro plan starts at $9/month, with additional overage pricing for teams whose submission volume exceeds their plan.